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package servlet;

import ejb.BusinessLogicLocal;
import java.io.File;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Marco
 */
public class ServletInitDB extends HttpServlet {
    @EJB
    private BusinessLogicLocal businessLogic;

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        Path webAppPath = Paths.get(getServletContext().getRealPath("/"));        
        Path root = webAppPath.getRoot();          
        String subPath = root.toString().concat((webAppPath.subpath(0, webAppPath.getNameCount()-4)).toString());        
        System.out.println(subPath + "/mfm-centro-sportivo-war/web/XML/config.xml");        
        if(!(new File(subPath + "/mfm-centro-sportivo-war/web/XML/config.xml").exists()))
        {
            businessLogic.createConfigFile(subPath + "/mfm-centro-sportivo-war/web/XML/config.xml");
            businessLogic.loadDataFile(subPath + "/mfm-centro-sportivo-war/web/XML/Utenti.xml", "user");
            businessLogic.loadDataFile(subPath + "/mfm-centro-sportivo-war/web/XML/Eventi.xml", "evento");
            businessLogic.loadDataFile(subPath + "/mfm-centro-sportivo-war/web/XML/Posti.xml", "posto");
            businessLogic.loadDataFile(subPath + "/mfm-centro-sportivo-war/web/XML/Campi.xml", "campo");
            businessLogic.loadDataFile(subPath + "/mfm-centro-sportivo-war/web/XML/PrenotazioneCampi.xml", "prenotazionecampo");
        }
    }   

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
